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Power Outage
Safety Information for Short-Term Power Outages or "Rolling Blackouts"
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E-mail this pageWhat is a "Rolling Blackout?"
A rolling blackout occurs when a power company turns off electricity to selected areas to save power. The areas are selected using sophisticated computer programs and models. The blackouts are typically for one hour, then the power is restored and another area is turned off. Hospitals, airport control towers, police stations, and fire departments are often exempt from these rolling blackouts. These blackouts usually occur during peak energy usage times, usually between 4:00 p.m. and 7:00 p.m. on weekdays, but they can happen at any time of day. Blackouts may affect the same area more than once a day, and may exceed an hour's duration.
How Do I Find Out if My Area Will Have a Rolling Blackout?
Listen to local television, radio, and check the web site of your power company. Usually, rolling blackouts occur when power usage increases, especially during hot weather when many people are using air conditioning to keep cool. Power companies try to give a warning when they will turn off power to an area, but they cannot always do that.
Top Safety Tips for a Blackout
- Only use a flashlight for emergency lighting. Never use candles!
- Turn off electrical equipment you were using when the power went out.
- Avoid opening the refrigerator and freezer.
- Do not run a generator inside a home or garage.
- If you use a generator, connect the equipment you want to power directly to the outlets on the generator. Do not connect a generator to a home's electrical system.
- Listen to local radio and television for updated information.
How Can I Prepare Before a Blackout Happens?
Assemble essential supplies, including:
- Flashlight
- Batteries
- Portable radio
- At least one gallon of water
- A small supply of food.
Due to the extreme risk of fire, do not use candles during a power outage.
If you have space in your refrigerator or freezer, consider filling plastic containers with water, leaving about an inch of space inside each one. (Remember, water expands as it freezes, so it is important to leave room in the container for the expanded water). Place the containers in the refrigerator and freezer. This chilled or frozen water will help keep food cold if the power goes out, by displacing air that can warm up quickly with water or ice that keeps cold for several hours without additional refrigeration.
If you use medication that requires refrigeration, most can be kept in a closed refrigerator for several hours without a problem. If unsure, check with your physician or pharmacist.
If you use a computer, keep files and operating systems backed up regularly. Consider buying extra batteries and a power converter if you use a laptop computer. A power converter allows most laptops (12 volts or less) to be operated from the cigarette lighter of a vehicle. Also, turn off all computers, monitors, printers, copiers, scanners and other devices when they're not being used. That way, if the power goes out, this equipment will have already been safely shut down. Get a high quality surge protector for all of your computer equipment. If you use the computer a lot, such as for a home business, consider purchasing and installing an uninterruptible power supply (UPS). Consult with your local computer equipment dealer about available equipment and costs.
If you have an electric garage door opener, find out where the manual release lever is located and learn how to operate it. Sometimes garage doors can be heavy, so get help to lift it. If you regularly use the garage as the primary means of entering your home upon return from work, be sure to keep a key to your house with you, in case the garage door will not open.
If you have a telephone instrument or system at home or at work that requires electricity to work (such as a cordless phone or answering machine), plan for alternate communication, including having a standard telephone handset, cellular telephone, radio, or pager. Remember, too, that some voice mail systems and remote dial-up servers for computer networks may not operate when the power is out where these systems are located. So even if you have power, your access to remote technology may be interrupted if the power that serves those areas is disrupted. Check with remote service providers to see if they have backup power systems, and how long those systems will operate.
Keep your car fuel tank at least half full because gas stations rely on electricity to power their pumps.
Follow energy conservation measures to keep the use of electricity as low as possible, which can help power companies avoid imposing rolling blackouts.
Using a Generator
If you are considering obtaining a generator, get advice from a licensed professional, such as an electrician. Make sure the generator is listed with Underwriter's Laboratories or a similar organization. Some municipalities, Air Quality Districts, or states have "air quality permit" requirements. A licensed electrician will be able to give you more information on these matters. Always plan to keep the generator outdoors -- never operate it inside, including the basement or garage. Do not hook up a generator directly to your home's wiring. The safest thing to do is to connect the equipment you want to power directly to the outlets on the generator. Connecting a cord from the generator to a point on the permanent wiring system and back-feeding power to your home is an unsafe method to supply a building during a power outage.
Specific Information for People With Disabilities
If you use a battery-operated wheelchair, life-support system, or other power-dependent equipment, call your power company before rolling blackouts happen. Many utility companies keep a list and map of the locations of power-dependent customers in case of an emergency. Ask them what alternatives are available in your area. Contact the customer service department of your local utility companies to learn if this service is available in your community.
If you use a motorized wheelchair or scooter, have an extra battery. A car battery also can be used with a wheelchair but will not last as long as a wheelchair's deep-cycle battery. If available, store a lightweight manual wheelchair for backup.
If you are blind or have a visual disability, store a talking or Braille clock or large-print timepiece with extra batteries.
If you are deaf or have a hearing loss, consider getting a small portable battery-operated television set. Emergency broadcasts may give information in American Sign Language (ASL) or open captioning.
Copyright 2008. The American National Red Cross. All Rights Reserved.
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